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http://dx.doi.org/10.7781/kjoss.2013.25.1.035

Experimental Study on Two-Seam Cold Formed Square CFT Column to Beam Connections with Asymmetric Diaphragms  

Oh, Heon Keun (Department of Architectural Engineering, University of Seoul)
Kim, Sun Hee (Department of Architectural Engineering, University of Seoul)
Choi, Sung Mo (Department of Architectural Engineering, University of Seoul)
Publication Information
Journal of Korean Society of Steel Construction / v.25, no.1, 2013 , pp. 35-45 More about this Journal
Abstract
The concrete-filled tube column has the excellent structural performance. But it is difficult to connect with column and beam because of closed section. It suggests that pipe should be produced by welding two sides together where two shapes are joined after a channel is pre-welded onto the three sides in order to form an internal diaphragm. The upper diaphragm of the connection used the horizontal plate and the lower diaphragm used the Vertical plate. This research performed 6 monotonic tension experiments describing the connection upside and downside in order to evaluate the structural capability of the offered connection. And the cyclic loading experiment was performed about 2 T-Type column to beam connections. As to the experimental result edge cutting geometry, there was no big effect. An increase in the number of holes of the plate ultimate strength was increased by 5% and The thickness of the plate increases, the maximum strength was increased by 4%. T-Type connections until it reaches the plastic moment showed a stable behavior.
Keywords
concrete filled tube(CFT); internal diaphragm; simple tension test; cyclic loading program; cold forming;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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